Nissan Altima 2007-2012 Service Manual: P0460 Fuel level sensor
Description
The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combination meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.
DTC Logic
DTC DETECTION LOGIC
NOTE: • If DTC P0460 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
Refer to EC-1179, "DTC Logic".
• If DTC P0460 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-1378, "DTC Logic".
When the vehicle is parked, the fuel level in the fuel tank is naturally stable. It means that output signal of the fuel level sensor does not change. If ECM senses sloshing signal from the sensor, fuel level sensor malfunction is detected.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and wait maximum of 2 consecutive minutes.
2. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Go to EC-1359, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK COMBINATION METER FUNCTION
Refer to MWI-38, "CONSULT-III Function (METER/M&A)".
Is the inspection result normal? YES >> GO TO 2.
NO >> Go to MWI-46, "Diagnosis Procedure".
2.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> INSPECTION END
P0456 Evap control system
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis
for DTC P0456.
This diagnosis detects very small leakage in the EVAP line betw ...
P0461 Fuel level sensor
Description
The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the
combination meter. The combination
met ...
Other materials:
P0603 ECM Power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMAT ...
Exterior front
1. Power windows
2. Windshield
3. Windshield wiper and washer switch
4. Engine hood
5. Tie down
6. Fog light switch (if so equipped)
7. Headlight and turn signal switch
8. Replacing bulbs
9. Tire pressure
10. Flat tire
11. Tire chains
12. Mirrors
13. Door locks, NISSAN Intelligen ...
P1225 TP Sensor
Description
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the ...